Mention send-pr.html webpage in man page of send-pr(1)

[Rob]

Hi,

There's the webpage:

   http://www.freebsd.org/send-pr.html

as an alternative to using send-pr from your terminal.
However, there's no mentioning of this webpage in the
send-pr(1) man page.
I think this should be added to the man page.

For many people, send-pr might not work; they don't want,
or are not allowed to send email from their FreeBSD computer.

The send-pr-webpage is then an excellent alternative.

Rob.